The patch titled
do_coredump(): check return from argv_split()
has been added to the -mm tree. Its filename is
do_coredump-check-return-from-argv_split.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: do_coredump(): check return from argv_split()
From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
do_coredump() accesses helper_argv[0] without checking helper_argv !=
NULL. This can happen if page allocation failed.
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/exec.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN fs/exec.c~do_coredump-check-return-from-argv_split fs/exec.c
--- a/fs/exec.c~do_coredump-check-return-from-argv_split
+++ a/fs/exec.c
@@ -1808,6 +1808,11 @@ int do_coredump(long signr, int exit_cod
if (ispipe) {
helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc);
+ if (!helper_argv) {
+ printk(KERN_WARNING "%s failed to allocate memory\n",
+ __func__);
+ goto fail_unlock;
+ }
/* Terminate the string before the first option */
delimit = strchr(corename, ' ');
if (delimit)
_
Patches currently in -mm which might be from penguin-kernel@xxxxxxxxxxxxxxxxxxx are
do_coredump-check-return-from-argv_split.patch
dma_alloc_from_coherent-fix-fallback-to-generic-memory.patch
dma_alloc_coherent-clean-it-up.patch
dma-coherent-catch-oversized-requests-to-dma_alloc_from_coherent.patch
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